KCET2024PhysicsElectromagnetic Waves
Electromagnetic waves are incident normally on a perfectly reflecting surface having surface area A . If I is the intensity of the incident electromagnetic radiation and c is the speed of light in vacuum, the force exerted by the electromagnetic wave on the reflecting surface is
Options
- A2 I A / c
- BI A / c
- C1 A / 2 c
- DI / 2 A c
Correct answer
A. 2 I A / c
Step-by-step solution
Force exerted by the electromagnetic wave on the reflecting surface is, F= 2 L A C